diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 5784555..ec2014e 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -17,7 +17,7 @@ dependencies = [
     "httptools==0.6.4",
     "httpx==0.27.2",
     "langchain==0.3.13",
-    "langchain-openai==0.2.11",
+    "langchain-openai==0.2.14",
     "langgraph==0.2.60",
     "loguru==0.7.2",
     "orjson==3.10.12",